Home / 2,929.94-4,391.85-1,285.10

Finding the Fourth Proportional to 2,929.94, 4,391.85 and 1,285.10

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Solution

The fourth proportional to 2,929.94, 4,391.85 and 1,285.10 is: 1,926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.94 : 4,391.85 = 1,285.10 : x
  2. Step 2: Convert to fraction form
    2,929.94/4,391.85 = 1,285.10/x
  3. Step 3: Cross multiply
    2,929.94x = 4,391.85 × 1,285.10
  4. Step 4: Simplify right side
    2,929.94x = 5,643,966.44
  5. Step 5: Solve for x
    x = 5,643,966.44/2,929.94
  6. Step 6: Final answer
    x = 1,926.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.